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Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics JTMP20 – Frequently Asked Questions
1) Will a 10-32 x 3/8 truss head screw thread into a standard electrical box or device bracket?
Yes. 10-32 is the standard machine thread used on steel outlet boxes, device mounting brackets, and ground screw holes in North American electrical work, and the JTMP20 is cut to that thread. At 3/8 inch it's a short screw, so use it where the tapped hole is in sheet steel or a bracket, not where you need to reach through thick build-up.
2) What does a truss head give me over a pan head on a 10-32 screw?
The truss head on the JTMP20 is wider and lower-profile than a pan head, so it spreads bearing load over an oversized or slotted hole and sits flatter against a cover plate or bracket. Pick it when the hole is larger than the screw shank or when head clearance behind a plate is tight. If you need the head to pull into a countersunk hole, a truss head is the wrong choice.
3) Are these zinc plated screws OK outdoors or in a damp location?
The JTMP20 is zinc plated steel, which is a mild indoor corrosion coating. It's fine in dry interior panels, boxes, and plenum work. For wet locations, exterior runs, coastal sites, or washdown areas, specify stainless rather than zinc plated steel.
4) Is a 10-32 x 3/8 machine screw the same thing as a self-tapping sheet metal screw?
No. The JTMP20 is a machine screw with a straight 10-32 machine thread, so it needs an existing tapped hole or a nut. It will not cut its own thread into unprepared sheet steel. If you're fastening into bare metal with no tapped hole, you want a self-drilling or sheet metal screw instead.
5) How is the Metallics JTMP20 packaged for stocking on a van or in a shop?
It ships as a jar of 100, which is the packaging electricians stock for repetitive device and cover screws. The jar keeps the count contained on a truck shelf better than a loose bag, and one model number covers the whole pack, so reordering is just JTMP20.
How fast can I get the Metallics JTMP20 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JTMP20 come with a warranty?
Absolutely. The Metallics JTMP20 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JTMP20?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JTMP20 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.